Project

General

Profile

Actions

Bug #16265

closed

Test (spec) failure using current MSYS2 tools, related to -fstack-protector and possibly D_FORTIFY_SOURCE=2

Added by MSP-Greg (Greg L) over 4 years ago. Updated 10 months ago.

Status:
Closed
Target version:
-
ruby -v:
ruby 2.7.0dev (2019-10-19T08:19:27Z master 1d435bd51a) [x64-mingw32]
[ruby-core:95434]
Tags:

Description

GH PR https://github.com/ruby/ruby/pull/2573 was a work-around that forced using some non-current MSYS2 packages libraries for building. These libraries are only available on Appveyor because their images are out-of-date, a new MSYS2 install would not have them.

Using current MSYS2 libraries requires adding '-fstack-protector' to LDFLAGS. I also experimented with adding 'D_FORTIFY_SOURCE=2' to CFLAGS.

Ruby build/compiles with those flags added. test-all passes. But spec tests always lock up when running:

C-API Thread function rb_thread_call_without_gvl
- runs a C function with the global lock unlocked
- runs a C function with the global lock unlocked amd unlocks IO with the generic RUBY_UBF_IO

The tests are in spec/ruby/optional/capi/thread_spec.rb, as shown:

https://github.com/ruby/ruby/blob/1d435bd51aeca75f6e437bc92de2271a716a1ced/spec/ruby/optional/capi/thread_spec.rb#L124-L141

and the freeze occurs on line 137.

I've run this once in ruby-loco, twice in my ruby fork, and several times locally. In all runs, test-all passed, and spec stopped at the test above. This uses gcc 9.2.0, and the problem would occur with anyone doing a 'fresh' install of MSYS2.

Not being a c type, this is way beyond what I can fix. Happy to try patches, etc. Thanks, Greg

Actions

Also available in: Atom PDF

Like0
Like0Like0Like0Like0Like0Like0Like0Like0Like0